package com.ynny.Service;

import com.ynny.Dao.Impl.optional_coursesDaoImpl;
import com.ynny.Entity.Courses;
import com.ynny.Entity.optional_courses;

import java.util.List;

public interface CourseService {
    public int selectCourse(String number,String courseName);//选课
    public List<Courses> query();

    public optional_courses queryCourseByNumber(String number);
}
